Re: [Lightning-dev] DRAFT: interactive tx construction protocol

2020-01-30 Thread Antoine Riard
> The funding transaction sig would actually fail verification if tip differs between funder and fundee Yes that's the reason I wrote the initiator can just announce its own and receiver use it to sign the funding tx, even if receiver tip is backward. Funding tx won't propagate from receiver

Re: [Lightning-dev] DRAFT: interactive tx construction protocol

2020-01-30 Thread Antoine Riard
Hey Darosior, You don't need a strict synchronization between both peers, just let nLocktime picked up by initiator and announce it at same time than feerate or at `tx_complete`. Worst-case, a slow-block-processing receiver may not be able to get the transaction accepted by its local mempool, but

Re: [Lightning-dev] DRAFT: interactive tx construction protocol

2020-01-30 Thread ZmnSCPxj via Lightning-dev
Good morning darosior, > Hi Lisa and all, > > Given the discussion about utxos snooping, I wondered if there was any > obvious drawbacks of using a transaction chain construction ? > > Since the obvious target of the probing is the accepter, it seems that the > opener needs to at least have

Re: [Lightning-dev] DRAFT: interactive tx construction protocol

2020-01-30 Thread darosior via Lightning-dev
Hi Lisa and all, Given the discussion about utxos snooping, I wondered if there was any obvious drawbacks of using a transaction chain construction ? Since the obvious target of the probing is the accepter, it seems that the opener needs to at least have something at stake in order to be